As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK, CENTER FUSELAGE II LOWER SKIN BETWEEN FRAME 67-73 AND STRINGER 24L-24R ON FIXING FLANGE WING TO FUSELAGE AFT WITH FRETTING CORROSION. MAINTENANCE REPRIMED FUSELAGE II LOWER SKIN BETWEEN FRAME 67-73 AND STRINGER 24L-24R ON FIXING FLANGE WING TO FUSELAGE AFT IAW SRM 51-23-04.